TEONITA Y. VELASCO. Managerial Performance of Middle-Level Managers in Agricultural Schools in Northwestern Mindanao Philippines. Indonesian Journal of Social and Environmental Issues (IJSEI), [S. l.], v. 1, n. 3, p. 239–252, 2020. DOI: 10.47540/ijsei.v1i3.77. Disponível em: https://ojs.literacyinstitute.org/index.php/ijsei/article/view/77. Acesso em: 5 jun. 2026.